From Konstantin:

In preparation for the upcoming PDX datacenter move, we are removing
all dependencies on PDX infrastructure for day-to-day operations. All
projects using sigul MUST update their client configuration to the
following (only listing the lines that must change – the other ones
should stay the same):

EDIT: Don't forget to update SIGUL_BRIDGE_IP global var in global-vars-{production,sandbox}.sh when making the below changes.
sigul-bridge-yul.linuxfoundation.org: 199.204.45.55
sigul-bridge-us-west-2.linuxfoundation.org: 44.232.126.158

projects in vex-yul:
[client]
bridge-hostname: sigul-bridge-yul.linuxfoundation.org
server-hostname: vex-yul-wl-sigul-server-1.dr.codeaurora.org

projects in AWS (and elsewhere, like vex-sjc):
[client]
bridge-hostname: sigul-bridge-us-west-2.linuxfoundation.org
server-hostname: aws-us-west-2-lfit-sigul-server-1.dr.codeaurora.org

A couple of notes:
1. this can be done at any time as the new bridges work alongside
current ones; you should be able to schedule this migration and roll
back to the previous configuration if you encounter problems
2. the new bridges are listening on external IPs, so the clients must
be able to reach out to the internet on the sigul bridge port
(tcp/44334)
3. if this isn't done by mid-January, your project is likely to
experience disruptions as we continue to work on VPN sunset at PDX, so
please don't put it off